Brother Kogyo Kabushiki-kaisha

Chisato Hayashi

Ryuji Kato

Noriaki Satoh

Hitomi Sadohara

Eiji Kawamura

There is provided a water-based ink for ink-jet recording, including: a self-dispersible pigment modified by sulfonic acid group; glycerol; diethylene glycol; a penetrant; and water, wherein the glycerol and the diethylene glycol satisfy the following condition (i):0.01&#x2266;DEG/(Gly+DEG)&#x2266;0.11&#x2003;&#x2003;(i)in the condition (i), Gly represents an amount of the glycerol in the water-based ink (% by weight); and DEG represents an amount of the diethylene glycol in the water-based ink (% by weight).

Water-based ink for ink-jet recording, ink cartridge, ink-jet recording apparatus, and ink-jet recording method

There is provided a water-based ink for ink-jet recording including: a colorant; water; glycerol; and at least one of raffinose and a derivative thereof in an amount ranging from more than 0% by weight to not more than 2% by weight with respect to an entire amount of the water-based ink. There is also provided a water-based ink for ink-jet recording including: a colorant; water; glycerol; diethylene glycol; and at least one of raffinose and a derivative thereof.

Water-based ink for ink-jet recording, ink cartridge, ink-jet recording apparatus and ink-jet recording method

There is provided a water-based ink for inkjet recording, including: a self-dispersible pigment modified by carboxylic acid group; glycerol; diethylene glycol; alkylene glycol monoalkyl ether; and water, wherein the glycerol and the diethylene glycol satisfy the following condition (i):0.24&#x2266;DEG/(Gly+DEG)&#x2266;0.92&#x2003;&#x2003;(i)in the condition (i), Gly represents an amount of the glycerol in the water-based ink (% by weight); and DEG represents an amount of the diethylene glycol in the water-based ink (% by weight).

Provided is a treatment liquid used for ink-jet recording including polyallylamine, water, and at least one acid selected from the group consisting of amidosulfonic acid, and itaconic acid.

Growing community of inventors

Marugame, Japan

Chisato Hayashi